W. C. Martin, Jack Sugar, and Jack L. Tech, "Calculations of Autoionizing d9s2np Levels in Zn i, Cd i, and Hg i," J. Opt. Soc. Am. 62, 1488-1492 (1972)
Three Rydberg series of the type d10s21S0−d9s2np. (J = 1) are known in each of these spectra. We have made intermediate-coupling calculations for the configurations Zn i 3d94s24p, 5p; Cd i 4d95s25p, 6p; and Hg i 5d96s27p. The Slater parameters were determined to about 15% accuracy by various methods, or were adopted from previous calculations. Percentage compositions in the LS coupling scheme and in the scheme of highest purity are given for the three levels having J = 1 in each configuration. The results establish the most appropriate designations for these levels and for all of the higher d9s2np series members. Although the Zn i 3d94s24p (J = 1) levels are found to be significantly perturbed, the calculated relative oscillator strengths of the three absorption transitions to these levels agree well with the experimental values. Some other comparisons with experiment are discussed, and the relative intensities of the three observed series within each spectrum are qualitatively explained.
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The center of gravity of the configuration is equal to A +G1+(7/2)G3. We use the reduction G3(dp) = 3G3(dp)/245.
The differences in the listed values of this parameter for the two configurations in a particular spectrum are not significant. A slight increase of ζd is expected for increasing n of the np electron; the HF value for ζd in Cd i 4d95s26p, for example, is 5.3 cm−1 greater than the HF value for Cd i 4d95s25p (Ref. 5).
Denotes parameters that were allowed to vary in level-fittmg calculations.
Parameter values (except A) taken from Ref. 5.
Parameter values from Ref. 1.
Table II
Calculated levels (J = 1) for the two lowest 3d94s2np configurations in Zn i.
LS percentages preceded by asterisks (*) were obtained from eigenvector expansion coefficients having opposite sign to the other components for the level. Relative signs were not determined in the jl scheme. Reference 17
Represents the “observed” 1P° percentage (see text), α and β being normalization factors: α =2.275 × 107 cm−1, β = 8.78 × 108 cm−1.
Table III
Calculated levels (J = 1) for the two lowest 4d95s2np configurations in Cd i.
LS percentages preceded by asterisks (*) were obtained from eigenvector expansion coefficients having opposite sign to the other components for the level. Relative signs were not determined in the jl scheme.
Wave number at peak of very wide absorption resonance [G. V. Marr and J. M. Austin, Proc. Roy. Soc. (London) A310, 137 (1969)]. Reference 4. The calculated level separations were fitted to the observed separations as given in Ref. 2. The differences are not significant.
LS percentages preceded by asterisks (*) were obtained from eigenvector expansion coefficients having opposite sign to the other components for the level. Relative signs were not determined in the jj scheme.
The center of gravity of the configuration is equal to A +G1+(7/2)G3. We use the reduction G3(dp) = 3G3(dp)/245.
The differences in the listed values of this parameter for the two configurations in a particular spectrum are not significant. A slight increase of ζd is expected for increasing n of the np electron; the HF value for ζd in Cd i 4d95s26p, for example, is 5.3 cm−1 greater than the HF value for Cd i 4d95s25p (Ref. 5).
Denotes parameters that were allowed to vary in level-fittmg calculations.
Parameter values (except A) taken from Ref. 5.
Parameter values from Ref. 1.
Table II
Calculated levels (J = 1) for the two lowest 3d94s2np configurations in Zn i.
LS percentages preceded by asterisks (*) were obtained from eigenvector expansion coefficients having opposite sign to the other components for the level. Relative signs were not determined in the jl scheme. Reference 17
Represents the “observed” 1P° percentage (see text), α and β being normalization factors: α =2.275 × 107 cm−1, β = 8.78 × 108 cm−1.
Table III
Calculated levels (J = 1) for the two lowest 4d95s2np configurations in Cd i.
LS percentages preceded by asterisks (*) were obtained from eigenvector expansion coefficients having opposite sign to the other components for the level. Relative signs were not determined in the jl scheme.
Wave number at peak of very wide absorption resonance [G. V. Marr and J. M. Austin, Proc. Roy. Soc. (London) A310, 137 (1969)]. Reference 4. The calculated level separations were fitted to the observed separations as given in Ref. 2. The differences are not significant.
LS percentages preceded by asterisks (*) were obtained from eigenvector expansion coefficients having opposite sign to the other components for the level. Relative signs were not determined in the jj scheme.